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What is thermometry?

Thermometry The branch of heat relating to the measurement of the temperature of a body is called thermometry. The thermometer is an instrument used to measure the temperature of a body. The essential requisites of a thermometer are given as under:  1) Construction, 2) Calibration, and 3) Sensitiveness. For the construction of a thermometer, the proper choice of a substance, whose physical property varies uniformly with rising in temperature, is essential. 1) Construction The physical property of a substance plays an important role in the construction of a thermometer. In a mercury thermometer, the principle of expansion of mercury with rising temperature is used. The platinum resistance thermometer is based on the principle of the change in resistance with a change in temperature. The gas thermometer is based on the principle of change in volume or pressure with a change in temperature. 2) Calibration  When a thermometer is constructed, it should be properly calibrated. The standa

Background of Biophysics

Background of Biophysics

Biology tries to understand the diversity of the living world and the process through which living things lead their lives. How do the animals collect food, develop relations with one another, perceive the environment and reproduce all these are the subject matter of biology.

On the other hand, the laws followed by the physical world of nature and the simple mathematical explanations of those laws are the subject matter of physics. It may seem that there is no link between the simplicity of physics and the complexity of biology.

But with the advancement of science, and depending on its different branches, a relation has been established between biology and physics. This new field has been named biophysics. Biophysics employs the simple and mathematical laws of physics in the complex processes of biology and thus investigates various mysteries of life. Biophysics is the bridge between biology and physics.

Biophysics in one way can identify the arrangement of atoms and molecules in DNA or protein; similarly, it can invent cancer treatments or artificial kidneys using technology. There is no doubt that biophysics can also play a significant role in controlling environmental pollution and thus save the biodiversity of the future world.

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